.course-inline-library-heart {
  display: grid;
  gap: 0.8rem;
  min-width: 0;
  margin: 1rem 0;
  padding: clamp(0.8rem, 2vw, 1.2rem);
  border: 1px solid rgba(60, 111, 107, 0.4);
  border-radius: 16px;
  background: linear-gradient(145deg, #f3f8f5, #e8f1f0);
  color: #193530;
}

.course-inline-library-heart-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.9fr);
  gap: 0.5rem 1.1rem;
  align-items: start;
}

.course-inline-library-heart-heading :is(h4, p) {
  margin: 0;
}

.course-inline-library-heart-heading h4 {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
}

.course-inline-library-heart-boundary {
  color: #465c58;
  font-size: 0.83rem;
  line-height: 1.5;
}

.course-inline-library-heart-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 0.55rem 1rem;
}

.course-inline-library-heart-controls label {
  display: grid;
  gap: 0.25rem;
  min-width: min(100%, 200px);
  font-size: 0.78rem;
  font-weight: 700;
}

.course-inline-library-heart-controls select {
  width: 100%;
  min-height: 38px;
  border: 1px solid #8ba7a0;
  border-radius: 8px;
  background: #fff;
  color: #14322d;
  padding: 0.3rem 0.55rem;
  font: inherit;
}

.course-inline-library-heart-mode,
.course-inline-library-heart-playback {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.course-inline-library-heart-controls button {
  min-height: 38px;
  border: 1px solid #7f9b95;
  border-radius: 8px;
  background: #fff;
  color: #173a32;
  padding: 0.35rem 0.7rem;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}

.course-inline-library-heart-camera {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}

.course-inline-library-heart-camera span {
  margin-right: 0.2rem;
  color: #465c58;
  font-size: 0.78rem;
  font-weight: 700;
}

.course-inline-library-heart-camera button {
  min-height: 36px;
  border: 1px solid #a6bcb6;
  border-radius: 8px;
  background: #fff;
  color: #173a32;
  padding: 0.3rem 0.55rem;
  font: inherit;
  font-size: 0.77rem;
  cursor: pointer;
}

.course-inline-library-heart-camera button:hover {
  border-color: #205e54;
  background: #e2f2ec;
}

.course-inline-library-heart-controls button:is(:hover, [aria-pressed="true"]) {
  border-color: #205e54;
  background: #d9eee7;
}

.course-inline-library-heart :is(button, select, input):focus-visible {
  outline: 3px solid #e3a136;
  outline-offset: 2px;
}

.course-inline-library-heart-stage {
  position: relative;
  min-width: 0;
  height: clamp(320px, 42vw, 470px);
  overflow: hidden;
  border: 1px solid #314a4e;
  border-radius: 12px;
  background: #071015;
}

.course-inline-library-heart .course-inline-library-heart-scene {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
}

.course-inline-library-heart-stage-label {
  position: absolute;
  z-index: 2;
  left: 0.75rem;
  bottom: 0.7rem;
  max-width: calc(100% - 1.5rem);
  border-radius: 7px;
  background: rgba(4, 16, 20, 0.76);
  color: #e8f6f2;
  padding: 0.35rem 0.55rem;
  font-size: 0.72rem;
  pointer-events: none;
}

.course-inline-library-heart-stage-status {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  width: min(80%, 320px);
  margin: 0;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(169, 216, 215, 0.38);
  border-radius: 10px;
  background: rgba(8, 32, 39, 0.96);
  color: #e8f6f2;
  padding: 0.9rem 1rem;
  text-align: center;
  font-size: 0.85rem;
  line-height: 1.45;
  pointer-events: none;
}

.course-inline-library-heart-stage-status[hidden] { display: none; }

.course-inline-library-heart-feedback {
  margin: 0;
  border-left: 3px solid #ad623c;
  padding: 0.35rem 0.65rem;
  color: #653923;
  font-size: 0.82rem;
}

.course-inline-library-heart-timeline {
  display: grid;
  grid-template-columns: auto minmax(80px, 1fr) auto;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.79rem;
  font-weight: 700;
}

.course-inline-library-heart-timeline input {
  width: 100%;
  accent-color: #17725f;
}

.course-inline-library-heart-timeline output {
  white-space: nowrap;
  font-weight: 500;
}

.course-inline-library-heart-evidence {
  display: grid;
  gap: 0.25rem;
  border-top: 1px solid #bed1cb;
  padding-top: 0.7rem;
  font-size: 0.84rem;
}

.course-inline-library-heart-evidence p {
  margin: 0;
  line-height: 1.5;
}

@media (max-width: 700px) {
  .course-inline-library-heart-heading {
    grid-template-columns: minmax(0, 1fr);
  }
  .course-inline-library-heart-timeline {
    grid-template-columns: minmax(0, 1fr);
  }
  .course-inline-library-heart-timeline output {
    white-space: normal;
  }
}

@media (max-width: 390px) {
  .course-inline-library-heart-stage { height: 340px; }
  .course-inline-library-heart-controls label { width: 100%; }
  .course-inline-library-heart-controls button { font-size: 0.78rem; }
}